EP1310716A2 - Entlüftungsvorrichtung - Google Patents
Entlüftungsvorrichtung Download PDFInfo
- Publication number
- EP1310716A2 EP1310716A2 EP02447210A EP02447210A EP1310716A2 EP 1310716 A2 EP1310716 A2 EP 1310716A2 EP 02447210 A EP02447210 A EP 02447210A EP 02447210 A EP02447210 A EP 02447210A EP 1310716 A2 EP1310716 A2 EP 1310716A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- liquid
- ball
- deaerator
- seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K24/00—Devices, e.g. valves, for venting or aerating enclosures
- F16K24/04—Devices, e.g. valves, for venting or aerating enclosures for venting only
- F16K24/042—Devices, e.g. valves, for venting or aerating enclosures for venting only actuated by a float
- F16K24/044—Devices, e.g. valves, for venting or aerating enclosures for venting only actuated by a float the float being rigidly connected to the valve element, the assembly of float and valve element following a substantially translational movement when actuated, e.g. also for actuating a pilot valve
- F16K24/046—Devices, e.g. valves, for venting or aerating enclosures for venting only actuated by a float the float being rigidly connected to the valve element, the assembly of float and valve element following a substantially translational movement when actuated, e.g. also for actuating a pilot valve the assembly of float and valve element being a single spherical element
Definitions
- the present invention relates to a new type of valve more particularly intended for a deaerator involved in emptying a tank to another tank.
- Deaerators are good devices known to separate gas-liquid mixtures and more particularly air-oil in a whole series applications, particularly in the case of lubrication collected by recovery pumps.
- the purpose is of course to supply an oil again if not pure, clean and free of air bubbles, which can be this is reused.
- deaerators equipped with specific valves.
- Such devices deaerators consist of a cavity essentially cylindrical inside which the oil-air mixture is introduced tangentially so as to induce inside said cavity rotational movement through which oil accumulates along the walls in the part the lowest while the air remains central in the highest part.
- An air outlet port is arranged in the center of the device so as to be able to collect accumulated air in the central part while the oil is usually discharged through orifices in the bottom of the wall.
- US-A-5,565,970 discloses a irrigation control device for sealing a liquid comprising an irrigation valve disposed in an irrigation canal and whose system opening / closing depends on the liquid level relative to the seat of said valve.
- this level of liquid is located above the seat of the valve, the ball floats on the surface of the liquid and the valve is open.
- this liquid level is below the seat of the valve, the ball obstructs the seat of the valve and the valve is thus closed.
- This valve has several disadvantages: it is a valve "one shot” that is to say after closing once without liquid, she remains closed even if the liquid level rises above the seat of the valve.
- it is designed to specifically control the transfer of liquids and this does not fit to quench air.
- she is not adapted to operate in the presence of a flow important liquid, the ball being able to stay on its seat when the liquid returns to the top of the seat of the valve.
- the present invention aims to propose a device that allows to solve the problems of the state of the technique and in particular which makes it possible to avoid the introduction of air into a tank in which one drain from another tank.
- the present invention further aims to allow a solution that can guarantee a watertight air while allowing a fast flow and even very liquid, for example in case of breakage of hydraulic pipeline.
- the present invention further aims to propose a particularly simple concept that is easy to implement in any type of hydraulic equipment.
- the present invention relates to a valve, in particular intended for a deaerator, essentially in the form of a cylinder perforated with one or more lateral opening (s) allowing the passage of a liquid to be drained, the upper part is closed with a cap preferably perfectly tight on or in which are arranged vents for aeration, and a bottom or seat serving as input to the deaerator, said valve being equipped with a ball designed to float at the surface of the liquid entering the one or more openings and to move freely within said valve function of the level of this liquid so as to open or closing said valve, said ball having a density at least one third lower than that of the liquid.
- Said liquid may for example be oil, water or any other equivalent liquid.
- the density of said ball is close to half of that of the liquid.
- the choice of the density of the ball is preferably adapted to the function of the valve, which is preferably here to quench air.
- said valve is able to adopt an open position and a position closed depending on the flow of liquid inside the valve.
- the open position corresponds to a position in which the level of liquid entering the openings of the flap is located above the bottom or seat of the valve and the ball floats on the surface of the liquid.
- the closed position corresponds to a position in which the level of liquid entering the openings of the flap is located below the bottom or seat of the valve and the ball closes the bottom or seat of the valve, and therefore access to the deaerator.
- the dimensions of the ball are such that it moves freely inside the flapper but can not get out.
- the ball is made of a material such as steel stainless to withstand aggressive liquids.
- the ball is made of plastic or other material for use with non-aggressive liquids.
- the ball is hollow.
- the present invention also relates to a deaerator provided with a valve according to the invention.
- the present invention relates to the use of the valve according to the invention for the emptying possibly fast or very fast a first tank to a second tank using a deaerator.
- Figures 1, 2 and 3 describe the principle from emptying a first tank to a second tank through a deaerator equipped with a valve according to the invention.
- FIG. 4 represents a detailed view of the deaerator valve shown in Figures 1 to 3.
- Figures 1 to 3 describe conditions of use of a deaerator equipped with a valve according to the invention.
- a deaerator equipped with such a valve can be used, according to a preferred type of application, for the draining a first tank 1 to a second tank 2, the two tanks being separated by baffles 3.
- Figure 1 illustrates the operation of the flap when emptying at a relatively slow speed tank 1 to the tank 2.
- the valve is made so that the liquid enter it and get through the bottom or seat of the valve 56 to the deaerator inlet.
- the deaerator allows to separate the liquid-gas mixture, for example oil - air, essentially by inducing a rotation at the interior of said deaerator so that the liquid, and especially the oil, accumulates along the walls in the lower part while the air will remain in the center and can escape by the same valve.
- the valve serves as a purge valve.
- the liquid is then sucked by a door 10 located in the lower part of the tank 2.
- Figure 2 illustrates the operation of the valve in the case of an abnormally rapid emptying of the tank 1 to tank 2. This situation can occur present in case of accident, such as a break downstream of the tank 2.
- the valve 5 of the deaerator 4 passes the liquid to the inlet of the de-aerating device 4 and then to the suction door 10 while allowing also the passage of the air towards the free surface represented by level 11 in the first tank.
- the ball present in the deaerator remains in a raised position and does not close the outlet of the valve.
- Figure 3 illustrates the operation of the valve in the case of rapid emptying of the tank 1 to the tank 2, while the liquid level is lower than the input level of the deaerator.
- FIG. 4 shows in detail the check valve deaerator used in the invention.
- This flapper presents itself essentially in the form of a cylinder or a parallelepiped 50 perforated with one or more openings lateral 52 which allow the passage of the liquid from tank 1 to drain to the tank 2.
- the part of said cylinder or parallelepiped 50 is closed by a cap 53 perfectly sealed.
- small holes 54 are provided in this plug.
- the seat 56 of the valve is directly fixed on the deaerator and is therefore equipped with appropriate means such as a thread that will allow fix the valve on said deaerator.
- the valve is equipped with a ball 60 which is able to float on the liquid entering by its various openings.
- the dimensions of this ball are such as the ball must be able to move freely to inside the flapper with the level of the liquid, do not be able to leave the valve and be able to close perfectly the inlet of the de-aerator device in form a circular opening.
- this ball will be made of a light material and can resist aggressive liquids such as steel stainless or stainless steel. According to this form of execution, she can be simply done by putting together or solidarizing two half-shells in stainless steel or stainless steel that we will then polish.
- this ball can be made of a plastic material sufficiently resistant to the liquid used.
- a position is defined for the valve open and a closed position, as mentioned above.
- the operation of the valve is such that when there is a flow rate, the valve is in the open position and the ball floats on the surface of the liquid, whereas when there is no flow of liquid, and therefore only one airflow, the valve is closed and the ball seals the seat 56 of the valve. In this way, the flapper the invention makes it possible to quench air.
- the flap whose function is to quench air preferably the shape of the ball valve is also adapted to this function and shape tolerance associated with said ball is very small so as to perfectly fit the shape of the valve seat and thus ensure a tight seal Max.
- the ball has a shape such that it can be used regardless of the conditions of liquid flow, that is to say that it is low, normal or important. In the case of a liquid flow important, the ball is designed to withstand the force of important drag exerted on it by the liquid.
- cap 53 reduces the drag of liquid on the ball during the emptying, this which would not be the case with another device, such than a grid for example.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
- Details Of Valves (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP20020447210 EP1310716B1 (de) | 2001-11-09 | 2002-11-07 | Entlüftungsvorrichtung |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP01870240 | 2001-11-09 | ||
| EP01870240A EP1310714A1 (de) | 2001-11-09 | 2001-11-09 | Ventil, insbesondere ein Ventil für Entlüftung |
| EP20020447210 EP1310716B1 (de) | 2001-11-09 | 2002-11-07 | Entlüftungsvorrichtung |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1310716A2 true EP1310716A2 (de) | 2003-05-14 |
| EP1310716A3 EP1310716A3 (de) | 2003-12-03 |
| EP1310716B1 EP1310716B1 (de) | 2006-07-26 |
Family
ID=26077535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20020447210 Expired - Lifetime EP1310716B1 (de) | 2001-11-09 | 2002-11-07 | Entlüftungsvorrichtung |
Country Status (1)
| Country | Link |
|---|---|
| EP (1) | EP1310716B1 (de) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5565970A (en) | 1992-06-05 | 1996-10-15 | Canon Kabushiki Kaisha | Image forming apparatus |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3695010A (en) * | 1970-08-28 | 1972-10-03 | Fiberglass Structures | Tank venting system |
| US5019141A (en) * | 1990-10-11 | 1991-05-28 | Parker Hannifin Corp. | Vent line separator |
| US5365970A (en) * | 1993-04-07 | 1994-11-22 | Butler Larry D | Gravity flow chemigation system and low level shutoff valve |
-
2002
- 2002-11-07 EP EP20020447210 patent/EP1310716B1/de not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5565970A (en) | 1992-06-05 | 1996-10-15 | Canon Kabushiki Kaisha | Image forming apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1310716A3 (de) | 2003-12-03 |
| EP1310716B1 (de) | 2006-07-26 |
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